I dont undertand this problem and I need help solving it. A negative charge of -2.0C and a positive charge of 3.0C are separated by 80m. What is the force between the two charges?
In its scalar form, the law is:
F = k e q1 q2 / r 2 ,
where ke is Coulomb's constant (ke ≈ 9×109 N⋅m2⋅C−2), q1 and q2 are the signed magnitudes of the charges, and the scalar r is the distance between the charges. The force of the interaction between the charges is attractive if the charges have opposite signs (i.e., F is negative) and repulsive if like-signed (i.e., F is positive).